2026 NPPES data Addiction (Substance Use Disorder) Registered Nurse NPI 1770861007 APRN
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EMILY STAGG, APRN

Addiction (Substance Use Disorder) Registered Nurse in MANCHESTER, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
489
Medicare Part D claims · 48 beneficiaries · Addiction (Substance Use Disorder) Registered Nurse avg: 955
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$49.43
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: EMILY STAGG, APRN is a Addiction (Substance Use Disorder) Registered Nurse ([object Object]) practicing in MANCHESTER, Connecticut with a Medicare Part D prescribing footprint of 489 claims across 48 beneficiaries — 5% brand-name prescribing . Industry payments of $49.43 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: EMILY STAGG, APRN filed 489 Medicare Part D claims in 2023 across MANCHESTER, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

EMILY STAGG, APRN at a glance

Quality data not reported

NPI registry status

Active

Issued 08/03/2011

NPI 1770861007

Primary specialty

Addiction (Substance Use Disorder) Registered Nurse

Niche

2,764 US NPIs in this specialty

Medicare Part D claims

489 49% vs specialty avg

2023 prescription claims

Specialty avg: 955

Specialty distribution in Connecticut

How Addiction (Substance Use Disorder) Registered Nurse compares to other specialties among Connecticut providers

Connecticut providers

Addiction (Substance Use Disorder) Registered Nurse share within Connecticut

1. Addiction (Substance Use Disorder) Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction (Substance Use Disorder) Registered Nurse share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Addiction (Substance Use Disorder) Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction (Substance Use Disorder) Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Addiction (Substance Use Disorder) Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction (Substance Use Disorder) Registered Nurse) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

EMILY STAGG, APRN is a Addiction (Substance Use Disorder) Registered Nurse provider practicing in MANCHESTER, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APRN. NPI: 1770861007. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

EMILY STAGG, APRN appears in the CMS NPPES registry as a Addiction (Substance Use Disorder) Registered Nurse provider holding APRN credentials at 71 HAYNES ST, MANCHESTER, CT, 06040, with a listed phone of (860) 533-3494. NPI 1770861007 was issued on 08/03/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STAGG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 489 prescription claims written by this provider, covering 48 Medicare beneficiaries and totaling roughly $44K in drug spend, split 5% brand-name and 95% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Addiction (Substance Use Disorder) Registered Nurse is a narrow specialty nationwide, with 2,764 enrolled providers across 52 states and an average of 955 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

71 HAYNES ST
MANCHESTER, CT 06040

Provider Details

NPI 1770861007
Specialty Addiction (Substance Use Disorder) Registered Nurse
Credentials APRN
Gender Female
NPI Issued 08/03/2011

Hospital and facility affiliations

Facilities where EMILY STAGG, APRN bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CLIFFORD W BEERS GUIDANCE CLINIC INC
NEW HAVEN, CT
TOWN OF NORTH HAVEN
NORTH HAVEN, CT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for EMILY STAGG, APRN. Source: openpaymentsdata.cms.gov.

Total received

$49

Largest payer

Otsuka America Pharmaceutical, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

EMILY STAGG, APRN — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 489 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

489
Total Claims
$44K
Total Drug Cost
48
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
758
Total Day Supply
19,308
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$26K
Generic Drug Cost
$18K

Patient Demographics

Average Patient Age
60.3 years
Avg HCC Risk Score
1.01
Gender Split
65% female / 35% male
Age Distribution
<65: 25, 65-74: 14, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Divalproex Sodium Er
Divalproex Sodium
66
Quetiapine Fumarate
44
Clonazepam
36
Lamotrigine
35
Buspirone Hcl
32
Lorazepam
22
Alprazolam
17
Aripiprazole
16
Diazepam
15
Fluoxetine Hcl
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Addiction (Substance Use Disorder) Registered Nurse Overview

How EMILY STAGG, APRN fits within the Addiction (Substance Use Disorder) Registered Nurse landscape nationally.

2,764
Addiction (Substance Use Disorder) Registered Nurse Providers in US
52
States with Addiction (Substance Use Disorder) Registered Nurse
955
Avg Claims per Provider

EMILY STAGG, APRN's 489 claims are below the specialty average of 955.

Nearby Addiction (Substance Use Disorder) Registered Nurse Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as STAGG.

Compare Addiction (Substance Use Disorder) Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is EMILY STAGG, APRN's specialty?
EMILY STAGG, APRN specializes in Addiction (Substance Use Disorder) Registered Nurse and practices in MANCHESTER, Connecticut. Credentials: APRN.
How much does EMILY STAGG, APRN prescribe under Medicare Part D?
In 2023, EMILY STAGG, APRN wrote 489 Medicare Part D claims totaling $44K in drug costs for 48 beneficiaries.
Where is EMILY STAGG, APRN located?
EMILY STAGG, APRN is located at 71 HAYNES ST, MANCHESTER, CT, 06040. Phone: (860) 533-3494.
What is EMILY STAGG, APRN's NPI number?
EMILY STAGG, APRN's National Provider Identifier (NPI) is 1770861007, issued on 08/03/2011.
Does EMILY STAGG, APRN prescribe more brand-name or generic drugs?
EMILY STAGG, APRN's prescribing is 5% brand-name and 95% generic drugs by claim count, with $26K in brand drug costs.
How many Addiction (Substance Use Disorder) Registered Nurse providers are there in the US?
There are 2,764 Addiction (Substance Use Disorder) Registered Nurse providers across 52 states in the US. The average Addiction (Substance Use Disorder) Registered Nurse provider writes 955 Medicare Part D claims per year.
What drugs does EMILY STAGG, APRN prescribe most often?
Based on 2023 Medicare Part D data, EMILY STAGG, APRN's most frequently prescribed drugs include Divalproex Sodium Er, Quetiapine Fumarate, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does EMILY STAGG, APRN accept Medicare?
EMILY STAGG, APRN appears in CMS Medicare data with 489 Part D claims and 48 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify EMILY STAGG, APRN's credentials?
EMILY STAGG, APRN's NPI is 1770861007 with credentials APRN. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology